This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 16 |
| 2 | 192 |
| 3 | 1008 |
| 4 | 3504 |
| 5 | 9504 |
| 6 | 21840 |
| 7 | 44576 |
| 8 | 83232 |
| 9 | 145008 |
| 10 | 239008 |
| 11 | 376464 |
| 12 | 570960 |
| 13 | 838656 |
| 14 | 1198512 |
| 15 | 1672512 |
| 16 | 2285888 |
| 17 | 3067344 |
| 18 | 4049280 |
| 19 | 5268016 |
| 20 | 6764016 |
| 21 | 8582112 |
| 22 | 10771728 |
| 23 | 13387104 |
| 24 | 16487520 |
| 25 | 20137520 |
| 26 | 24407136 |
| 27 | 29372112 |
| 28 | 35114128 |
| 29 | 41721024 |
| 30 | 49287024 |
| 31 | 57912960 |
| 32 | 67706496 |